Graupner Balsa Building Boards from Hobby Lobby!

Not just a balsa building board,
but a Building Board "System"!

Pinning a structure to a balsa building board is the easiest way to build a model airplane. Pins will hold their place in balsa even at oblique angles and when the pins are removed the balsa wood closes the pin holes and is ready for the next project. If the board should warp you can moisten the concave side and the board will flatten.

Each "unit" consists of a balsa wood building board which is 39" long, 9.8" wide, and 3/4" thick with a 1/4" slot cut into all four edges, plus 2 plywood joiner strips which are about 1/4" thick. Using the joiner strips you can connect a second unit to produce a building board which is either twice as wide or twice as long as a single unit. Or, you can connect 3 units, or 4 or as many as you want. You could pin a 13 foot long sailplane wing onto 4 end-joined building units.

Printed on the balsa board is a precise grid pattern which is helpful for maintaining the alignment of constructed parts.

You’ll wonder how you ever built models without this big, laminated balsa board!

50" x 13" x 1" board made of laminated 1" thick balsa planks. This board is more useful for model building than any wing or fuselage jig because it is so easy to insert pins into it at any angle. And when the pins are removed the holes are “self-healing”. The board is, of course, a natural wood product. It can warp from moisture or humidity or because of being stored in a non-flat position. You can flatten it by moistening the concave side.
Note: We have advertised here a board which is 50" x 13" x 1". The board which you will be shipped is actually 53" x 13.8" x 1". This extra size will allow you to plane off or cut off any edge dents which may have occurred during shipping.