Maple lumber collection
Clean, pale domestic alternative for furniture and utility builds.
View optionSiam Balsa Wood Guide
Wood species guide · Imported specialty hardwood
Siam Balsa is best understood by how it looks, how it works, and where it should be used. This guide explains the practical buying details before sending you to the right Kingma products.
Scientific nameAlstonia spatulata
Janka hardness450 lbf
Average dried weight25.0 lb/ft³
Best fitUtility wood
Overview
Why choose Siam Balsa?
Siam Balsa is a imported specialty hardwood associated with Southeast Asia and Pacific Islands. It is useful when the project calls for utility wood, plywood, carvings, crates, and boxes
For SEO and customer usefulness, this page separates the science from the buying decision: appearance, working behaviour, durability, project fit, and then the right Kingma shopping path.
Scientific nameAlstonia spatulata
DistributionSoutheast Asia and Pacific Islands
ShrinkageRadial: ~3%, Tangential: ~6%, Volumetric: ~9%, T/R Ratio: ~2 *Root wood of this species has an average dried weight of 3.6 lb/ft³ (60 kg/m³ ) and an estimated hardness of only 8 lbf (36 N).
DurabilityRated as perishable; poor insect resistance.
Siam Balsa colour, grain, and figure
Expect heartwood is light to golden brown, not clearly demarcated from the sapwood. Intermittent latex canals are sometimes present and appear as slits in the wood.
In practical selection, the grain and texture are best treated this way: grain is usually straight or slightly interlocked. With a fine to medium texture and low natural luster.
Working notes
In the shop, easy to work with both hand and machine tools. Poor bending properties.
Although there have been no reports of health reactions with Siam balsa, other closely related species in the Alstonia genus have been reported to cause skin irritation—possibly in conjunction with the latex canals found in the trunk.
Siam Balsa should be sold by project fit: colour, workability, durability, and the format the customer actually needs.
Best uses for Siam Balsa
Best projects
Utility wood, plywood, carvings, crates, and boxes
Use caution
Avoid specifying it by name alone; confirm board size, moisture, colour, figure, and the project environment before buying.
Finish strategy
Test finishes on offcuts first, especially when colour, blotching, outdoor exposure, or grain filling matters.
Buying note
Choose boards, slabs, plywood, blanks, or posts based on the project rather than species name alone.
Shop path
Buying Siam Balsa from Kingma
Start with the direct species match when Kingma sells it. If stock rotates, use the closest live collection or a clearly explained alternative.
Live edge slabs
Use when the customer cares more about slab format and visual impact than this exact species.
View optionSimilar woods and alternatives
If Kingma does not have an exact match online, use the buying links below as practical alternatives only when the colour, grain, hardness, or project environment makes sense.
Siam Balsa FAQ
What is Siam Balsa best used for?
Siam Balsa is best considered for utility wood, plywood, carvings, crates, and boxes. Match it to the exact board format, colour, hardness, and finish plan before buying.
Is Siam Balsa beginner friendly?
It depends on density, grain direction, and tooling. Test cuts on offcuts first, and choose Maple, Cherry, Walnut, or Poplar when easier machining is the priority.
Does Kingma sell Siam Balsa?
Use the buying section on this page. If an exact product is not listed, the linked alternatives are included only when they make practical sense for colour, grain, or project use.