Cypress: the everyday structural timber
Cypress is the timber most Kenyan building actually uses. It is plantation grown, which makes it plentiful and cheap; it is straight-grained and easy to work; and Kenyan suppliers publish per-foot tables for it by section, most recently updated in September 2026.
It is also the timber most often used in the wrong place, and the mistake is nearly always the same one.
Per-section rates are on timber and board prices.
Where it is exactly right
Roof timbers. Rafters, purlins, ceiling joists and battens on a timber-framed roof. This is the bulk of its use and it is entirely fit for purpose, provided it is seasoned and sized for the span.
Studwork and framing. Behind a board, carrying nothing decorative.
Painted joinery. Skirting, architrave, cupboard framing, anything that will be gloss white. There is no point paying for figure nobody will see.
Fascia and barge boards, treated and properly finished. They will need maintaining, but so would anything there.
The two jobs it should never do
Staircase treads. Cypress dents. A tread is at eye level as you climb, it takes abrasion every day, and a dent in it is permanent. We are asked to replace cypress treads often enough that it is worth stating flatly: if the treads are cypress, the saving was not worth it.
Clear-finished anything in a room people look at. Cypress under a clear varnish looks like what it is, a cheap softwood, and no amount of finish disguises that. Paint it or use a hardwood.
Seasoning matters more than species here
Almost every cypress failure we see is moisture, not strength. Green timber in a roof twists as it dries, and a twisted rafter opens every joint it is part of. A green door panel cups. A green skirting board springs off the wall six weeks after fitting.
Properly seasoned cypress, correctly sized, does its job for decades. That is why we care more about where a length came from and how it was stored than about a few shillings in the rate.
Treatment
Cypress has little natural resistance to termites or rot, which in Nairobi is not a theoretical concern. Structural timber and anything near damp wants a preservative treatment, and the cut ends want it too, because end grain absorbs water many times faster than a face.
For which timbers survive what, see termites, humidity and choosing timber in Nairobi.
Board prices, for reference
What the sheet material itself costs, so you can see roughly where your money goes between material and workmanship.
| Work | Rate | Notes |
|---|---|---|
| Plain MDF board, 1220 × 2440 | KES 2,800 – 3,500 / board | |
| Laminated or melamine MDF, 1220 × 2440 | KES 4,000 – 5,000 / board | |
| Blockboard, 1220 × 2440 | KES 2,200 / board | |
| Marine plywood, 1220 × 2440 | KES 1,800 / board |
Indicative market ranges for Kenya, reviewed 2026-09, published so you can budget and compare quotes. They are not a quotation: your price is confirmed in writing after we have seen the job.