Skeleton-frame Construction at www.japanese-home-gardens.com

The advent of concrete, steel skeleton-frame construction and other materials, has reduced the tonnage to a figure that is even less than it was 40 years ago. The outlook for monumental stone is good and dimension stone for building is preferred for many types of high-class construction. Problems of the industry continue to be high production costs and waste. High freight costs are a serious problem since suitable sources are limited geographically. Dimension stone must be free of cracks, lines of weakness, joints and impurities, and must have good color and uniformity of texture. Limestone, granite, marble and sandstone comprise the bulk of dimension stone.

Upholstery construction. Frames. The first essential for a quality upholstered seat is to have a properly made frame to build upon. These should be made of kiln-dried poplar, birch, soft maple, gum, or sycamore. Harder woods such as oak, ash, and hickory have a tendency to split under excessive nailing. Frames should be assembled with spiral grooved dowels, tenons, screws, and the best glue; nails should never be used. Triangular corner blocks should reinforce the four inside corners of the seat frame.

Upholstery construction. Frames. The first essential for a quality upholstered seat is to have a properly made frame to build upon. These should be made of kiln-dried poplar, birch, soft maple, gum, or sycamore. Harder woods such as oak, ash, and hickory have a tendency to split under excessive nailing. Frames should be assembled with spiral grooved dowels, tenons, screws, and the best glue; nails should never be used. Triangular corner blocks should reinforce the four inside corners of the seat frame.