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Retaining wall timber, priced per unit

What the parts of a timber retaining wall cost in New Zealand: H5 poles and posts, H4 boards, sleepers, post concrete, socked drain coil and geotextile. Every price is read from the seller's own site and converted to the unit you actually buy by: poles by SED and length, boards per square metre of wall, concrete per kilogram, drain coil per metre. Anything whose treatment class or size cannot be read is held back, never guessed.

803 prices5 suppliers with public prices captured 10 October 2026
Cheapest H5 pole, 150 SED x 2.4 m$41.96Rangitikei Timber, not in stock · view
Cheapest H4 T&G board, per m² of wall$20.83Rangitikei Timber · 150 x 50 (130 x 45) · box grade (downgrade), pack of 390.6 lm · view
Cheapest standard-grade H4 T&G, per m²$40.29Rangitikei Timber · 200 x 50 (180 x 45) · standard grade, 4.8 m · view

Categories

H5 round poles
334 prices · 2 suppliers
from $30.90 each · $104.32 in stock
H5 square posts and piles
97 prices · 5 suppliers
from $15.09 $/m
Retaining boards
87 prices · 4 suppliers
from $20.83 $/m²
Sleepers
52 prices · 4 suppliers
from $11.62 $/m
Fence posts and strainers
166 prices · 5 suppliers
from $3.83 $/m · $4.09 in stock
Bagged concrete
25 prices · 5 suppliers
from $0.50 $/kg
Socked drain coil
24 prices · 2 suppliers
from $4.95 $/m
Geotextile
18 prices · 3 suppliers
from $1.68 $/m² · $2.19 in stock

Treatment class matters more than price

H4 is not H5. NZS 3640 hazard classes: H4 is for ground contact (fence posts, retaining boards); H5 is for ground contact with severe decay risk and is what in-ground retaining poles and piles are specified in; H6 is marine. Farm-store "rounds" and strainers are usually H4. A pole or post with no stated class is not listed here at all. Your designer or consent sets the class; this page only shows what it costs.

Suppliers

5 with public prices

Big-box prices are per store and can differ by branch; the store each price was read from is named. Delivery is not included in any price, and for a pile of poles it can be a large share of the cost.

SupplierLocationOffers Price basisDelivery
BunningsNational · 81 offersNational81National online price, incl GST; stock shown for the Lyall Bay storeDelivery or click and collect, cost by postcode at checkout.
Kiwi Timber SuppliesWaikato · 243 offersHorotiu243Online price, incl GST (ex GST cross-checked)Waikato yard; delivery by enquiry.
Mitre 10Wellington · 113 offersUpper Hutt113Upper Hutt store price, incl GST (prices vary by store)Store-dependent; many timber lines are collect only.
PlaceMakersWellington · 48 offersLower Hutt48Hutt City store price, incl GST (prices vary by store)Large item delivery from the Hutt City store: flat $130 up to 500 kg, 1 to 5 business days; over 500 kg quoted.
Rangitikei TimberManawatu-Whanganui · 318 offersMarton318Online price, incl GSTOwn trucks up to 400 km from the Marton yard; cost quoted at checkout. Freight-depot option for smaller or distant orders.

Suppliers that publish no price

Checked and left out because they do not show prices to the public online. They may well be cheaper; you have to ask them.

SupplierRegionWhy not listed
Crighton ITM SeaviewWellingtonITM shows no prices online; pricing is by store quote or trade account.
Toa ITM PoriruaWellingtonITM shows no prices online; pricing is by store quote or trade account.
CartersNationalPrices are behind a trade login.
Mitchpine (Levin)Manawatu-WhanganuiPole mill; publishes a PDF size chart, no prices. Its poles appear here through resellers.
FarmlandsNationalPosts and rounds not priced online; store or shareholder pricing.
PGG WrightsonNationalPosts and rounds not priced online; store pricing.
Ruahine TimberManawatu-WhanganuiNo online price list found.
Trade MeNationalOne-off listings from many sellers, not a supplier price series; left out of the index.

Method and rules

  1. Prices come from each supplier's own public product feed, product pages or category pages, incl GST (an ex-GST price would be converted and marked). Raw captures are kept so a supplier can be shown the exact page read.
  2. Each listing is read for treatment class, SED band or section, length, profile and pack size. A pack price is divided by its count; a pack of linear metres by its metres.
  3. Boards: $/lm, then $/m² of wall face from the cover width (finished width minus 10 mm for T&G, full width for plain boards). The basis is shown on every row.
  4. A pole, post or board with no treatment class, any listing whose size cannot be read, and any product the seller does not price online, is held out. 92 listings are held this run (70 no treatment, 8 no online price, 8 no price, 4 pack count unknown, 2 no section).
  5. Spot listings on Trade Me are not a supplier price series and are left out.

No affiliate links, no referral fees, no sponsored placement, no supplier relationships. Links go straight to the supplier with no tracking.

No supplier pays to appear here. There are no affiliate links, no referral fees and no sponsored placement anywhere on this page. Published by iterate as a public reference. Prices include GST and were read from each supplier's own site on the capture date shown; check the linked page before buying. Spotted a wrong price? Tell us and it gets fixed. Delivery is not in any price shown.