What is the strongest wood to buy?

Lignum vitae is one of the heaviest, hardest woods in the world. By comparison, while wenge is still a rather hard and heavy wood, it's considerably lighter and softer than the lignum vitae—yet its modulus of elasticity (on average) is higher than that of lignum vitae.

wood-database.com - World's Strongest Woods - The Wood Database

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So these three terms, along with Janka hardness, will form the four ingredients that we will use to come up with an overall picture of a wood’s strength level. We need to create a multi-faceted profile to come up with a well-rounded representation of what is “strong.” The problem is that each of these tests use completely different units of measurements, scales of magnitude, and are generally not directly comparable. Each of these facets will need to be standardized on a scale that preserves their significance, but strips them of their units of measurement.

So, let’s find the world’s strongest wood

What I’ve done is taken each of the four tests of wood strength (Janka hardness, MOE, MOR, and crushing strength) and found which species were the best and worst in that category, and then use those values as the upper and lower limits. (This is limited to the data I have on hand at the present, and could be revised or updated at a later time.) All the values in each category were then subtracted by the amount of the lower limit to serve as a baseline zero. Next, each of the values were divided by the upper limit for each category, and then that value is multiplied by 100 to serve as a percentage, and voila! We have a straightforward ranking from 0-100 in each of the four categories. This ranking would represent, as a percentage, how strong a given wood is in comparison to the species with the top mark for that category. Averaging across the four categories gives us an overall “strength index” from 0-100. A perfect score of 100 would be theoretically impossible unless a single wood species was the leader in all of the four tests (hint: none of them led in even two categories).

Let’s first review the leaders in each category:

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Is birch plywood toxic?

Our finishes are water-based, non-toxic, and safe for toys. The surfaces of our plywood are rolled with an acrylic based coating, it is UV cured and have no VOC's (volatile organic compounds).

casakids.com - Materials We Use: Baltic Birch Plywood Furniture - Casa Kids

Our beds are made with baltic birch plywood, a very strong material that is certified by both the FSC (Forest Steward Council) and CARB (California Air Resources Board). This assures that the trees were legally harvested and that the bonding glue has no formaldehyde in it. We never use particle board, which is a much lower grade material that disintegrates over time. Our finishes are water-based, non-toxic, and safe for toys. The surfaces of our plywood are rolled with an acrylic based coating, it is UV cured and have no VOC’s (volatile organic compounds). The edges are hand brushed with a natural wax oil that provides a smooth finish. Our primary finishes are birch, oak, walnut, and white. Accents can be added in white. Plywood edges will always be exposed on our furniture, regardless of finish. Custom accent colors can be requested. We will match your color of choice with a Benjamin Moore swatch. Contact us directly for custom colors.