PLYWOOD FOR FRAMING INSPECTION
Due to multiple layers and thin layers of Poplar veneer of high density, China Poplar plywood is an ideal material for the production of frames and the internal details of upholstered furniture. Poplar plywood has a stable geometry, which makes it an ideal product for the production of internal parts under the stretching, as well as allows you to achieve maximum efficiency in the processing. It is perfectly cut on CNC and securely locks furniture accessories. Due to careful production control of the adhesive joint strength, frame-grade panels plywood virtually has no separation problems.
- Furniture frames made of plywood
- Plywood for internal parts
frame-grade plywood and OSB and other engineered wood products are proving a reliable choice for furniture frames—not only for their strength, economy, and workability, but also for attributes like environmental value and indoor air quality.
- Frame-grade panel properties, such as strength, fastener-holding capacity, consistency, dimensional stability, and workability, lend themselves well to the demands of quality furniture production.
- Panel size improves manufacturing efficiencies and allows state-of-the-art manufacturing technology, such as CNC panel saws and routers, to be used.
- High-yield production minimizes material waste, reduces cost, and benefits the environment.
- Furniture frame applications, however, require panels to be cut into parts, sometimes smaller than 6 inches wide. These narrow widths, coupled with loads imposed on frames in use, require the use of frame-grade plywood or OSB to avoid overstress due to concentrated loads being applied on very small areas. With furniture-grade panels, the manufacturer can realize a sturdier frame and significantly increase yield.
Key panel characteristics for good frame performanceIn order to have good frame performance, manufacturers need to consider three key characteristics when selecting plywood and OSB panels: proper panel grade, ply/layup considerations, and thickness.
Many manufacturers use different thicknesses in different parts of the frame.
- Proper panel grade: Use a plywood or OSB panel grade that’s designed for the particular demands of furniture frames.
- Ply/layup considerations: Special frame-grade panels allow the user to specify the number of plies and their arrangement within the panel. However, the composition of the panel should still match the requirements panels need to meet for structural integrity, strength or stiffness, ability to drill holes into the panel edge, and fastener-holding capability. Some companies find that parallel laminated center plies help improve the holding strength of edge fasteners and make drilling easier.
- Thickness: Individual frame parts must be thick enough to resist imposed loads.
The optimum thickness of a given part also can be significantly affected by the overall frame design. Highly loaded parts, such as front rails, can be braced in a number of ways to reduce the thickness reached. Frame-grade panels can also be engineered to improve strength properties in the desired direction by changing the ply layup and grain orientation of inner plies.