SMD STOCKYARDS LTD

THE OUTLOOK
LING ROAD
TOWER PARK
POOLE
DORSET BH12 4PY

Tel: 01202 714990
Fax: 01202 714980

Company Logo

Suppliers of: steel floor decking,composite floor decks, steel decking, concreting, shear studs

SMD Stockyards Ltd - The UK’s No 1 Supplier of stock Composite Steel Decking Sheets & Accessories

SMD Stockyards hold an extensive range of flooring and roof decking products to service any contract size from small extension projects to large construction developments. The floor and roof decking profiles are cut to length using a CNC controlled cutter and banded to suit specific customer or site requirements.

Due to the logistical locations of all stockyards facilities and the high levels of stock, SMD steel decking profiles can be available for urgent same day collection or next day delivery.  For larger programmed projects, we can help manage phases at your convenience whilst maintaining competitiveness and flexibility.

Our office Locations are:

1 - Head Office:  Poole (Dorset)  Telephone – 01202-714990 Fax – 01202-714980

Contact: Kevin Harnett – Stockyard Manager kevin@smdstockyards.co.uk

2 - Brentwood (London / Essex) Telephone – 01277 812490 Fax – 01277 812491

Contact: Alan Green alan@smdstockyards.co.uk

3 - Ashbourne (Derbyshire) Telephone – 01335 300999 - Fax – 01335 300888

Contact: Jade Merrington jade@smdstockyards.co.uk

4 - Brighouse (Leeds) Telephone – 01202-714990 - Fax – 01202-714980

Contact: Kevin Harnett – Stockyard Manager kevin@smdstockyards.co.uk

5 - Coatbridge (Scotland) Telephone – 01698-622202 - Fax – 01202-714980

Contact: Kevin Harnett – Stockyard Manager kevin@smdstockyards.co.uk

Along with our stock range of profiles we also carry a large range of shear studs and edge trims to compliment your composite metal decking requirements and we will be happy to service both the small user and the larger contractor for any requirements.

Main Products:

Floor Decking:

Roof Decking:

Roof & Wall Cladding

Shear Studs

Filler Blocks

Reinforcement Mesh

Deck service fixings

Elements® Design Software

Our in-house developed design software enables you to carry out complex slab or roof designs using SMD products.  The Intuitive tabbed interface, 3D design graphics and message pane helps ensure compliant calculations are created with practical implications in mind.

Further technical information, image galleries and product specifications are available through the SMD Ltd website or via the BPi Download Library.

 

 

 

These files are provided by the manufacturer. While Building Products Index takes every care to ensure the information is correct and up to date, we cannot be held liable for any out of date or incorrect information in them. Please check with the supplier before specifying or purchasing products.

1 - Structural Metal Decks - Technical Manual
Composite Metal Decking

Published [03/09/15]File size [7569 KB]

2. SMD Corporate Brochure May 2016
SMD Structural Floor and Roof Solutions

Published [13/09/18]File size [1577 KB]

3. SMD Product Selector Brochure V4 Nov 17
Structural Floor and Roof Solutions, Metal Floor Decking Profiles

Published [13/09/18]File size [7468 KB]

4. SMD Division Concrete Brochure
In-situ Concrete Flooring Solutions

Published [13/09/18]File size [565 KB]

5. SMD Fibre Reinforced Concrete Slabs
Structural Floor and Roof Solutions ARCELLORMITTAL Tab-Deck Steel Fibres for Concrete

Published [13/09/18]File size [2472 KB]

6. SMD VoidSafe™ Protection System Sept 17
Structural Floor and Roof Solutions, Site protection Void Covers for Floor Decks Decking

Published [13/09/18]File size [3247 KB]

SMD Best Practice Data Sheet Shear Studs
SHEAR STUDS

Published [21/09/17]File size [671 KB]

SMD Netting Division Brochure
Net and Airbag Fall Arrest Solutions

Published [26/08/16]File size [648 KB]

SMD R51 Floor Deck Data Sheet
floor deck profile

Published [14/09/17]File size [1087 KB]

SMD RC30RR Roof Cladding Data Sheet
ROOF CLADDING

Published [21/09/17]File size [310 KB]

SMD SR100+ Roof Deck Product Data Sheet V2
roof deck profile

Published [21/09/17]File size [474 KB]

SMD SR135 Roof Deck Profile Data Sheet
roof deck

Published [21/09/17]File size [568 KB]

SMD SR158 Roof Deck Profile Data Sheet
roof deck

Published [21/09/17]File size [585 KB]

SMD SR200 Roof Deck Profile Data Sheet
roof deck

Published [21/09/17]File size [583 KB]

SMD SR30 Roof Decking Datasheet
ROOF DECK LOAD

Published [21/09/17]File size [440 KB]

SMD SR35+ Roof Deck Product Data Sheet V2
SMD SR35 Roof Deck Profile

Published [21/09/17]File size [484 KB]

SMD SR60 Roof Decking Data Sheet
ROOF DECKING

Published [21/09/17]File size [475 KB]

SMD Stud Welding Division Brochure
Mobile Stud Welding Solutions

Published [26/08/16]File size [499 KB]

SMD TAB Metal Deck Manual
metal decking reinforced with Arcelor Mittal steel fibres

Published [03/09/15]File size [3536 KB]

SMD Technical Guidance Notes
SMD Structural Floor and Roof Solutions

Published [13/12/16]File size [18468 KB]

SMD TR60+ Floor Decking Data Sheet
FLOOR DECKING

Published [21/09/17]File size [1016 KB]

SMD TR80+ Floor Decking Data Sheet
FLOOR DECKING

Published [21/09/17]File size [1013 KB]

SMD V7 Fixings for Metal Decking and Edge Trim
fixings for installing metal decking and edge trim

Published [21/09/17]File size [1002 KB]

SMD VoidSafe Protection System Data Sheet

Published [13/12/16]File size [670 KB]

SMD WC30C Wall Cladding Data Sheet
WALL CLADDING

Published [21/09/17]File size [303 KB]

SMD WC30CR Wall Cladding Data Sheet
steel decking

Published [21/09/17]File size [307 KB]

ACOUSTIC DECKING . .
CONCRETE: TYPES Steel Fibre Reinforced Concrete SFRC Composite Floor Slab Applications
DECKING Permanent: Composite Steel .
DECKING Permanent: Steel .
DECKING Permanent: Steel 2 Hour Fire Resistance
DECKING Permanent: Steel Closure Plates
FALL ARREST EQUIPMENT Air Bags .
FALL ARREST EQUIPMENT Safety Nets .
FALL ARREST EQUIPMENT Safety Nets BS EN 1263-1
FALL ARREST EQUIPMENT Safety Nets BS EN 1263-2
FALL ARREST EQUIPMENT Safety Nets Testing and Maintenance
FALL ARREST SYSTEMS .
FALL ARREST SYSTEMS Supply and Fit Services .
FIXINGS For Composite Decking .
FIXINGS For Metal Decks .
FLOOR DECKING . .
FLOOR DECKING Composite Floor Slabs .
FLOOR DECKING Composite Floor Slabs BS 5950: Part 4
FLOOR DECKING Composite Metal Profile .
FLOOR DECKING Composite Steel .
FLOOR DECKING Design and Installation Services .
FLOOR DECKING GRP Floor Gratings Incorporated .
FLOOR DECKING Mesh Free .
FLOOR DECKING Profiled Galvanised Steel .
FLOOR DECKING Profiled Galvanised Steel Acoustic .
FLOOR DECKING Profiled Galvanised Steel Lightweight .
FLOOR DECKING Profiled Galvanised Steel Longspan .
FLOOR DECKING Profiled Metal .
FLOOR DECKING Steel .
FLOOR DECKING Trapezoidal Composite .
FLOOR DECKING Void Opening Covers Incorporated .
FLOOR DECKING Void Opening Protection Systems .
FLOOR DECKS .
FLOOR SCREEDS Cementitious .
FLOOR SCREEDS Steel Decking Applications .
FLOOR SLABS . .
FLOOR SLABS Precast Concrete .
FLOOR TOPPINGS . .
FLOOR TOPPINGS Concrete .
FLOOR UNITS SOLID Composite Slabs Panels
FLOOR UNITS SOLID Composite Systems Steel Fibre Concrete Slabs Panels
FLOOR UNITS SOLID Longspan Slabs Panels
FLOOR UNITS SOLID Permanent Shuttering Profiled Steel Slabs Panels
FLOOR UNITS SOLID Profiled Steel Concrete Infill Slabs Panels
FLOORS Composite Concrete and Steel
FLOORS Composite Steel Decking
FORMWORK Permanent Steel Decking
REINFORCEMENT Profiled Steel Decking .
ROOF CLADDINGS . .
ROOF CLADDINGS Colourcoated .
ROOF CLADDINGS Profiled Sheets .
ROOF CLADDINGS Profiled Sheets Aluzinc
ROOF CLADDINGS Profiled Sheets Colourcoated Steel
ROOF CLADDINGS Profiled Sheets Galvanised Steel
ROOF CLADDINGS Steel Colourcoated
ROOF DECKS Structural Roof Decking .
STRUCTURAL DECKING . .
STRUCTURAL DECKING Composite .
STRUCTURAL DECKING Concreting .
STRUCTURAL DECKING Metal and Concrete .
STRUCTURAL DECKING Shear Studs .
STRUCTURAL DECKING Steel .
STRUCTURAL DECKING Stud Welding .
STUD WELDING
STUD WELDING Mobile Units .
WALL PROFILES Steel .
ARCELLORMITTAL Steel Fibres
ELEMENTS Design Software
R51 Floor Decking
RC30 Roof Claddings
SR100 Profiled Metal Decking
SR135 Profiled Metal Decking
SR153 Profiled Metal Decking
SR158 Profiled Metal Decking
SR200 Profiled Metal Decking
SR30 Profiled Metal Decking
SR35 Profiled Metal Decking
SR60 Roof Deck Profiles
TAB-DECK Steel Fibre Reinforced Concrete
TR60 Profiled Metal Decking
TR80 Profiled Metal Decking
VOIDSAFE Void Opening Protection Systems
WC30 Profiled Metal Wall Claddings

Slab surface flatness vs slab surface finish

October 2018

Slab surface flatness vs slab surface finish


When it comes to pouring concrete onto metal decking, there is a lack of understanding of the difference between slab surface flatness and slab surface finish. These are two separate points that need addressing so they do not become an issue later in the construction phase for a client.

As outlined in BS 8204-2(1), MCRMA Technical Paper No.13/SCI Publication P300(2) and Concrete Society Technical Report 75(3) due to the deflections occurring in the metal decking and steel frame during the construction phase it is not possible to construct a suspended concrete floor slab on metal decking to a tight surface flatness designation or a defined datum level.

The allowed deviation varies from 3 to 10mm depending on the flatness designation. However, as shown in Table 12.10a, SR1 is not achievable on metal decking suspended floors. To measure the surface regularity, the surveyor must place a 2m straightedge in direct contact with the concrete surface, resting under its own weight.



The straightedge must always be positioned parallel to the supporting beams and perpendicular to the metal decking span. The deviation will be measured using a slip gauge or graduated wedge from the underside of the straightedge, between two points which are in contact with the floor surface.



It should also be noted that the flatness and levels of the concrete slab post installation will change due to various factors. The concrete slab will deflect under loadings and there will be additional movement of the slab and steel beams, which will affect the flatness and levels of the concrete slab after construction. It is recommended that a survey of the floor should be taken within a month of installation, otherwise some of the above factors may have started to take affect and will invalidate the survey taken.

Surface finish

Surface finish is defined in BS EN 13670(4) and this Standard is adopted by NSCS 4th Edition(5) for concrete construction. There are four types of surface finish – Basic, Ordinary, Plain and Special. Whichever finish is specified, the concrete must be fully compacted to avoid cold joints, honeycombing and to minimise segregation, excessive blemishes or other defects in the hardened concrete. For unformed finishes it is important not to ‘over specify’ the quality of finish, particularly where it is covered up by following works.



Float marks, localised ridges, surface laitance and a mottled effect will be evident in the final finish. There is also a risk of reinforcement ripple. This type of finish is suitable to most areas, but allowance should be given by a client for the appropriate surface preparation (removal of float marks, localised ridges, weak layer). A levelling screed or smoothing underlayment, in addition to appropriate surface preparation and possible use of a primer may also be required prior to the installation of thin sheet flooring.



‘Ordinary’ surface finish is applicable for areas to receive flooring materials, types of false floor or other raised finishes. The concrete shall be finished by floating or panning or similar process, to produce a level, uniform surface. The powerfloat finish will be free from ridges and provide a rough textured surface but float marks are to be expected.



Ordinary surface finish may be acceptable for the application of finishes such as tiles or carpet and is usually requested by roofing contractors for roofing finishes to pass ‘pull-off’ tests. It may not be suitable for thin vinyl flooring without grinding or an underlayment but the surface preparation may be less extensive than for a Basic finish.

‘Plain’ surface finish is applicable for areas without any other finish other than paint or surface coatings and maybe suitable for directly trafficked surfaces. The concrete shall be finished by trowelling, or a similar process, to produce a dense, smooth, level uniform surface. This is often erroneously referred to as a power-floated finish.



Responsibility

Most installations of concrete to metal decking should specify a surface flatness of SR3, which the Basic surface finish will achieve. This is primarily due to time, cost and the fact that follow-on trades will require additional surface preparation for the final floor finish. To achieve a surface flatness of SR2 then an Ordinary or Plain surface finish is required. To construct a suspended concrete floor onto metal decking it is not possible to achieve a surface flatness of SR1 and therefore neither surface finish used will improve this.

The concrete contractor has a responsibility to install the concrete as per the client’s specification and therefore should educate the client about surface finishes, flatness and deflections to mitigate any potential issues prior to commencing on site. This type of communication improves relationships with clients and will potentially increase revenue.

The NEW R51+ floor deck profile has been launched... and is better than ever!

September 2018

We’re celebrating the launch of the new R51+ along with an updated version of Elements® Design Software


With innovation as one of our core values, it come as no surprise that we work to develop not only new products, but improve on our existing offerings too.


Based on our old profile, R51+ has been developed to offer clients improved performance and added benefits and options.
With innovation as one of our core values, it comes as no surprise that we work to develop not only new products, but improve on our existing offerings too.

After listening to feedback from clients and customers, our expert technical team identified the need for improvement in our re-entrant shallow floor decking product to provide greater design flexibility.
Due to popular demand…

The original R51 profile has been part of the SMD shallow floor deck suite since the early 1990s, and with improved structural efficiency, the R51+ is sure to prove just as popular.

The R51+ offers the same core benefits as its predecessor; excellent slab load carrying capacity, shallow slab depth option (100mm minimum for 1-hour fire rating) and flexibility for shear stud placement due to 150mm trough spacings. However, it now comes in S350 and S450 grades and thicknesses from 0.8mm to 1.2mm.

Technical Director, Jamie Turner, talks about the decision to release the R51+: “With the ever-changing landscape of construction, it was highlighted by our sales team that some of our clients needed a better option than our old R51 product. Two years of R&D including an extensive testing programme followed leading to the launch of R51+.”

Find out more about the updates and developments of the R51+ profile.


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