To make soft wood harder, you can apply a wood hardener or use a wood filler to strengthen the surface. Additionally, you can seal the wood with a protective finish like varnish or polyurethane to increase its durability and hardness.
According to my research and personal experience, both alder and agathis are considered soft woods, but I believe alder is the harder of the two. But wood densities can vary greatly. Agathis is in the pine family, so it would stand to reason that it's soft. The alder wood guitar bodies that I own don't seem that soft to me! Hope that helps.
soft wood is easy to cut but not good to make stuff and hard wood is hard to cut but good to make with
Most metals are harder than most common wood materials but there are extreem hard woods and very soft metals (even one metal is liquid: Mercury!).
coffee tables
Soft wood...
Pine is a soft wood.
wood can make slides because its soft slide tilts and it reusing.be careful of falling!
a soft wood
Basswood, definately. It's very fine grained and soft. Oak is much harder.
24 carat pure gold is very soft, which is why silver is added to it to make it harder.
Ground oyster shells will make soft water harder. Therefore, it will make hard water, harder.
soft wood is easier to make things with- but doesn't last as long and tends to deform over time