Building & Doors
With building & doors, start with the job: internal work, external exposure, or a spec that asks more of the product. That sets the direction before you get into finish or hardware. Mixing the wrong door type with the wrong opening causes a lot of call-backs. Check the related building hardware and insulation at the same time, because the door choice often changes what else you need.
Ballast - 20mm 35kg Large Pack
20mm ballast aggregate, 35kg pack, London delivery only
Siniat GTEC Moisture Plasterboard Tapered Edge - 12.5mm x 1200mm x 2400mm
Moisture-resistant plasterboard, tapered edge, 12.5mm x 1200mm x 2400mm, pink
Thincoat Angle Bead - 3000mm
3000mm thincoat angle bead for external plaster corners.
General Purpose Plywood CE2+ E1 EN636-2 FSC - 2440mm x 1220mm x 18mm
18mm general purpose hardwood plywood sheet 2440x1220mm, EN636-2 and FSC certifi…
Thincoat Angle Bead - 2400mm
Thincoat angle bead for plastering, 2400mm length
Plastering Sand Washed Large Pack - 35kg
Washed plastering sand in a 35kg pack, London delivery only
Easi Edge Sawn Treated KD C16 FSC - 100mm x 47mm (4" x 2") 3.0m
Sawn treated kiln dried C16 timber, 100x47mm (4x2), 3m length, FSC certified
Siniat GTEC Moisture Plasterboard Tapered Edge - 1200mm x 2400mm x 12.5mm
12.5mm moisture plasterboard, tapered edge, 1200mm x 2400mm
Sawn Treated Easi Edge Timber KD C16 FSC - 100mm x 47mm (4" x 2") 2.4m
Kiln dried C16 treated sawn timber, 100mm x 47mm x 2.4m, FSC certified
Mapei Fast Set Wall & Floor Tile Adhesive - 20kg Grey
20kg grey fast-set tile adhesive for interior/exterior use, light traffic in 3 h…
For the Trade
Start with the space and the use, because that usually decides more than finish or ironmongery. In building & doors, a tight opening, a heavy-use entrance, or a simple internal run all push you in different directions, and that is where the spec changes. If the opening is awkward, you usually favour the option that fits cleanly and keeps the rest of the job moving. If the door will take abuse, you look harder at the build and the hardware, not the colour. The jobs that come back are often the ones where layout was ignored and accessories were chosen first.
Building Supplies
You’re usually sorting the fixings, consumables and general site bits that sit around the main door or build package. The focus is less on finish and more on what has to hold up, what has to match, and what can stay economical.
If you need a narrower buy within this range, Building Supplies is the one to move to. The rest of building & doors covers the actual door or fitting. The common mistake is over-specifying the small stuff and under-specifying the part that takes the wear.
Doors & Door Fittings
When you’re narrowing building & doors down to Doors & Door Fittings, start with what has to move, latch, or close properly. That sets the hardware and the finish.
A plain internal door with light use does not need the same kit as a door under regular traffic. A heavier leaf will show weak hinges quickly. Most call-backs come from matching the door but not the fittings, so check the weight, the swing, and whether you need a cleaner finish or just something that will take the wear.
Dry Lining
Dry lining usually comes down to the finish you need and how much build-up you can afford. On a straight partition or lining, you want boards and accessories that keep joints and fixing points predictable. If the spec is tighter on fire, acoustic or impact, you move up before you start worrying about the last bit of trim.
The sheet is only half the job if the backing and fixings are off. The boards that save time stay flat and cut clean. A wavy face gets noticed long after the room’s handed over.
Drywall
Drywall is the pick when you want a cleaner, faster lining job without the extra build-up of other board types.
It works well where the finish matters and the wall build-up stays straightforward. If the spec needs more from the assembly, you move to a different board rather than forcing this one to cover every job.
Flooring
Flooring comes down to what’s already there and how much height you can lose. On a refurb, you’re usually choosing between a quicker overlay and a board that gives you a flatter base. That changes thresholds, skirtings and the trimming that follows.
In building & doors, flooring sits differently to door and lining work. Level, thickness and finish all pull against each other. Most call-backs come from taking the cheapest sheet without checking the build-up, then finding the finished floor sits proud or feels hollow.
Tiling
Tiling usually comes down to the finish and the wear it needs to take. The first call is whether you need a surface that will hold up under traffic or a quicker decorative finish. Compared with drywall or dry lining, it is less about speed and more about getting the base right. That is where jobs go wrong if the prep is rushed.
If you are pricing building & doors work, tiling often sits with the more exposed areas. Interior doors and building hardware are a different decision altogether. You usually know quickly whether the job needs a straightforward tile spec or something that needs more thought on movement, moisture, and finish.
Choosing Materials and Size
The first split for building & doors is usually material and size, not finish. Solid-core or heavier construction doors suit openings that get regular use. They take more abuse, but they are harder to handle and can add trimming time. Lighter boards are easier to move and quicker to hang, but they will not stand up to the same wear.
For exterior doors, weigh weather exposure, security and frame detail against cost. That spec moves up quickly. For interior doors, the choice is usually about a cleaner look against a tougher build. Get the opening right first. The wrong size or build is what causes the awkward return.
Completing the Setup
Once the main door is chosen, the next call is what finishes it off around the opening. If you need a cleaner reveal, you are into trims, architraves and the right building hardware. On a busier run, choose fittings that will take repeated use rather than the cheapest pack on the shelf.
Where the job meets a lining or stud, the finish usually comes down to what is already there. That is where building & doors work is won or lost - by the parts that stop the call-back, not the door on its own.
Local availability for Building & Doors
