IS 4414:1990 is the Indian Standard (BIS) for wooden table tops -specification. This standard specifies the requirements for materials, dimensions, manufacture, workmanship, finish, and testing for wooden table tops used in general domestic, office, and institutional furniture.
Wooden table tops -Specification
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Moisture Content (Solid Wood) | 12% ± 2% | Typically 8-12% for interior use, depending on the climatic zone of use. Not explicitly stated but controlled via test conditioning. | General European/North American woodworking practice |
| Thickness Tolerance (for panel <25mm) | ± 0.8 mm | Typically tighter, e.g., ± 0.3 mm for a raw board of similar thickness. | EN 14322:2021 |
| Vertical Static Load Test | Not specified in the standard. | 1000 N (for non-domestic use, Level 2) applied 10 times via a 100mm dia. pad. No fracture or functional loss allowed. | BS EN 15372:2016 |
| Horizontal Fatigue/Durability Test | Not specified in the standard. | A force (e.g., 300 N) is applied horizontally for 20,000 cycles to test the durability of legs and fixings to the top. | BS EN 527-2:2016+A1:2019 |
| Adhesive Bond Quality Test | Qualitative 'Knife Test' on a boiled sample; pass if wood fibres tear. | Quantitative bond shear strength test (e.g., > 1 N/mm²) or inferred pass/fail from holistic performance tests under load and climatic stress. | EN 314-1 (for plywood) |
| Surface Resistance to Cold Liquids | End Immersion Test: Immerse edge in water for 48 hours; no delamination. | Surface is exposed to specific agents (e.g., coffee, ethanol) for a set time; damage is rated on a 1-5 scale. | Test method from EN 12720:2009+A1:2013 |
| Dimensional Tolerance (Length/Width) | ± 2.0 mm | Not typically defined in performance standards; set by manufacturer/customer agreement (e.g., ±1.5 mm is common). | Typical manufacturing specifications |