Specifying Floor Finishes Room by Room for a Saudi Home

A floor is a build-up, not a tile. This is the sequence for specifying what goes on each floor, what goes under it, and what happens where two materials meet.

Specifying a floor properly means deciding four things per room, not one: the finish, the substrate it sits on, the adhesive or fixing system, and the detail at every edge and threshold. Owners who choose only the finish discover the other three later, usually as a variation or as a cracked floor. This sequence works through the decisions in the order that keeps them cheap to make.

Before stage one

You can start specifying floors once the layout is fixed, the wet areas are located, the structural floor levels are known and you understand where the drainage falls have to be formed. Floors are one of the earliest trades to be committed and one of the last to be installed, which means a decision made badly here sits under everything else. If the structural level survey has not been done, do that before selecting anything, because the depth available for a build-up determines what is possible.

• Obtain a level survey of the structural floor in every room, including the deviation across each room rather than a single figure.
• Confirm the finished floor level you are working to, and the thickness available between structure and that level in each area.
• Mark every wet area and every external threshold, because those are the places where falls and level changes are not optional.
• List the rooms where a change of material is intended and ask whether each change is genuinely needed.
• Check the cleaning and maintenance regime the household will realistically follow, since that rules out several otherwise attractive materials.

Stage 1: Classify every room by exposure, not by status

Group the rooms by what the floor has to tolerate. Entrances and the first few metres inside them carry grit tracked in from outside, which acts as an abrasive and dulls soft or polished surfaces quickly in a dusty climate. Wet rooms need slip resistance retained when wet and a surface that tolerates standing water at the edges. Kitchens take heat, oil and dropped objects. Bedrooms and majlis spaces are low abrasion but high scrutiny, because people look at them closely while sitting still. Service areas take wheeled loads and equipment. This grouping, rather than the perceived importance of the room, is what should drive the material choice.

• Deliverable: A room-by-room exposure classification, noting abrasion, moisture, heat, chemical exposure and point loading.
• Owner: Designer classifies with owner input on how the household lives.
• Approval gate: Every room is in a class before any product is shortlisted.

Stage 2: Shortlist materials against the class, then against appearance

Within each class, shortlist two or three materials that satisfy the technical requirement and only then compare them on appearance. Porcelain is dimensionally stable and low maintenance but shows its edges at cuts. Natural stone is individual and heavy, needs sealing and continues to need attention. Engineered timber is comfortable underfoot but unforgiving of moisture, which matters where a bathroom door opens into a bedroom. Resin and microcement give continuity without joints but need a very stable substrate. The sequence matters: choosing appearance first and then checking performance forces a compromise, while choosing performance first leaves a genuine aesthetic choice inside the shortlist.

• Deliverable: A shortlist per class with the technical reason each candidate qualifies, and the maintenance commitment each one implies.
• Owner: Designer shortlists; owner selects within the shortlist.
• Approval gate: No material is selected for a room whose exposure class it does not satisfy.

Stage 3: Design the build-up beneath the finish

Under the visible surface sits the screed or levelling layer, any insulation or separating layer, the adhesive or fixing system, and the movement joint strategy. The build-up is where the cost that nobody photographs lives, and also where failures start. Large-format tiles need a flatter substrate than small ones and tolerate less deviation, so a decision to use a large format is also a decision to pay for a better screed. Timber and resin finishes impose moisture content limits on the screed that take time to achieve, which belongs in the programme rather than in an argument at installation.

• Deliverable: A build-up section per room type showing every layer, its thickness and the substrate tolerance required.
• Owner: Designer details with input from the installer on buildability.
• Approval gate: The substrate flatness and moisture criteria are written down and agreed before the screed is placed.

Stage 4: Set the falls, drainage and level changes

In wet rooms the floor has to move water to a drain without creating a surface that feels wrong to walk on, which is a geometry problem rather than a material one. Decide the drain type and position first, because a linear drain against a wall and a central point drain produce entirely different fall patterns and tile layouts. At every external threshold, set out how water is kept from tracking inwards. Where two rooms differ in finished level, decide whether the change is a ramp, a step or a flush transition, and whether any of them conflicts with how the household moves around the house.

• Deliverable: Wet-room setting-out drawings showing drain positions, fall directions and the tile layout that results.
• Owner: Designer sets out; the waterproofing and tiling trades confirm before starting.
• Approval gate: No wet room is tiled until its falls and drain position are drawn and accepted.

Stage 5: Detail every junction and edge

Junctions are the shortest part of the specification and the most frequent source of complaint. Record the threshold at every change of material, the skirting type and how it meets the floor, the trim at the edge of tiled areas, the detail where a floor meets a glazed screen or a door frame, the expansion joint positions in large continuous areas, and the sealant type and colour at wet perimeters. Also fix the setting-out origin for each tiled area, because that single decision determines whether the cut tiles land in a doorway where everyone sees them or against a wall where nobody does.

• Deliverable: A junction schedule and the setting-out origin marked on each floor plan.
• Owner: Designer details; installer confirms achievable with the chosen format.
• Approval gate: The setting-out is marked out physically on site and accepted before fixing begins.

Stage 6: Quantify, order and check what arrives

Convert net areas into ordered quantities with an allowance for cuts and breakage that reflects the laying pattern, then round up to whole boxes and add an attic stock allowance for future repairs. Record the batch or shade reference on delivery and check it against the approved sample range before anything is laid, because a second batch ordered later rarely matches. For imported products, confirm the conformity position early, since items subject to Saudi standards need valid certification to clear through the SABER platform and a certificate problem stops the consignment rather than slowing it.

• Deliverable: An order schedule per area showing net quantity, wastage allowance, boxes ordered and attic stock retained.
• Owner: Installer orders against the approved submittal; owner or designer verifies on delivery.
• Approval gate: Delivered batch checked against the approved sample range and recorded before fixing starts.

Stage 7: Protect, inspect and record

A finished floor laid early in a finishing programme will have every other trade walking over it, so protection is part of the specification rather than a courtesy. Inspect for lippage, joint consistency, hollow areas under tiles and alignment against the setting-out, and do it before the protection goes down rather than after it comes up. At completion, record the product, batch, adhesive and grout used, the spares retained, and the cleaning products that are safe for the surface, since the wrong cleaner on a sealed stone or a resin floor causes damage that looks like a defect.

• Deliverable: Inspection records per area plus an as-built floor record with batch, products, spares and cleaning instructions.
• Owner: Installer protects; designer inspects; owner retains the record.
• Approval gate: Floors accepted and protected before the next trade is allowed into the room.

Handovers between stages

The hand-off that fails most often is between the screed trade and the tiling or flooring trade, because each believes the other is responsible for achieving the flatness the finish needs. Settle it by writing the tolerance into the screed subcontract and inspecting it with a straight edge before the finish is ordered. The second weak point is between delivery and installation, where a batch that does not match the approved range gets laid because the site was waiting. Give one named person the authority to refuse a delivery and make sure the programme has enough float that refusing one is possible.

How you know it is finished

The floor specification is complete when every room has a named finish, a drawn build-up, a stated substrate tolerance, a junction detail at each edge and a setting-out origin, and when the as-built record would let a future contractor repair a damaged area with matching material. Product standards and certification requirements are periodically revised, so confirm what currently applies with your supplier and the relevant authority at the time you order. Where a floor failure raises a question of liability between the screed and finishing trades, take the contractual position to a licensed legal adviser rather than negotiating it on site under pressure.

Domira designs and delivers interiors as part of the building, not after it: the finishing schedule, the joinery and the services coordination that decide whether a space looks built or assembled. Share the space and Domira will tell you what it would specify and what it would leave out.