wooden door standard

Scope

This standard specifies the classification, specifications, codes, requirements, test methods, inspection rules and signs, packaging, transportation and storage of wooden doors.

normative references

The clauses in the following documents become clauses of this standard through reference in this standard. For dated references, all subsequent amendments (excluding errata content) or revisions do not apply to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. . For undated references, the latest edition applies to this standard.

GB/T 5825-1986 Signs and symbols of opening and closing directions and opening and closing surfaces of doors and windows in buildings

GB/T 5824 — 1986 Dimension series of building doors and windows

GB 50210 — 2001 Code for acceptance of quality of building decoration engineering

GB/T 11718-1999 Medium Density Fiberboard

GB/T 4897-2003 Particleboard

GB/T 9846.1～9846.8 — 2004 Plywood

GB 18580 — 2001 Indoor decoration materials - Formaldehyde emission limit of wood-based panels and their products

GB 18583 — 2001 Limits of Hazardous Substances in Adhesives for Interior Decoration Materials

GB 18581 — 2001 Limits of harmful substances in solvent-based wood coatings for interior decoration materials

GB/T 1931-1991 Determination method of moisture content of wood

Terms and Definitions

The following terms and definitions apply to this standard.

● wooden door

A door made of wood materials (sawn wood, glued wood, etc.) as the main material to make door frames (sleeves) and door leaves, referred to as wooden doors.

● sawn timber

Finished or semi-finished timber of any size sawn from logs.

● Glue

A general term for cylindrical timber and various boards made of wood as raw material by gluing.

● All solid wood mortise door

Doors made of mortise and tenon-jointed wooden stiles inlaid with boards or spliced with thick boards are called all-solid wood tenon-joint doors, referred to as all-wood doors.

● Solid wood composite door

A solid (or near-solid) body made of wood, plywood and other materials as the main material, and a door with a surface layer of wood veneer veneer or other cladding materials is called a solid wood composite door, or solid wood door for short.

● plywood molded hollow door

The hollow door (the hollow volume is more than 50%) which is made of plywood and wood as the skeleton material and the surface layer is wood-based panel or PVC board, etc., is called plywood molded hollow door, referred to as molded door.

Classification, Specification and Marking

● Classification

● According to the opening form

The opening method and code are specified in Table 1.

● Opening method and code

Opening form: swing door, sliding door, folding door, spring door.

Code P T Z H

● When the fixed part is combined with a swing door or a sliding door, it is a swing door or a sliding door.

● By structure

The structure and code are specified in Table 2.

● Structure and code

Construction All solid wood mortise door, solid wood composite door, plywood moulded hollow door.

Code Q S K

● By finish

Finishes and codes are specified in Table 3.

● Finishes and codes

Veneer Wood-based panel Polymer material

Code M R G

● Signs of door leaf opening, closing direction and switch face

The signs and symbols of the opening and closing directions and switch surfaces of the door leaf shall comply with the provisions of GB/T 5825-1986; if it is closed in a clockwise direction, it is indicated by "5", and if it is closed in a counterclockwise direction, it is indicated by "6".

Specification

● Dimensions of door openings

The size of the door opening shall comply with the provisions of GB/T5824-1986. Recommended 700㎜×2000㎜, 760㎜×2000㎜, 800㎜×2000㎜, 900㎜×2000㎜, 700㎜×2100㎜, 760㎜×2100㎜, 800㎜×2100㎜, 900㎜×2100㎜, 1200 9 sizes including ㎜×2100㎜ are preferred.

● Dimensions of the door

The construction size of the door can be determined according to the finishing material of the door opening, the size of the attached frame, and the installation gap.

● Thickness of door leaf

The thickness of the door leaf is divided into 30㎜, 35㎜, 38㎜, 40㎜, 42㎜, 45㎜, 50㎜. The thickness of the door frame (sleeve) is determined according to the wall thickness.

mark

● Marking method

The marking of wooden doors is composed of the order of opening method, construction, finish, opening and closing direction and opening size.

hole size

switch direction finish

structure

open form

How to mark wooden doors

● Example

Swing solid wood composite door, veneer veneer, clockwise closing, opening width 900mm, height 2100mm.

Marked as PSM5 — 0921

● Materials

● wood

variety, material

The choice of wood species and material grade should meet the design requirements. When the material grade is not specified in the design, the quality of the wood used for the all-wood tenon joint door shall comply with the provisions of Appendix A of GB50210-2001.

● Wood moisture content

The moisture content of the selected wood should be no more than 12%. In high-humidity areas and high-humidity months, the allowable value of moisture content may be slightly larger, but it should not be greater than the local monthly equilibrium water rate.

● Glue

● MDF

The selected medium density fiberboard should meet the requirements of the first-class product specified in GB/T11718-1999, with a density of not less than 0.68g/cm, uniform distribution and stable texture.

● Particleboard

When selecting particleboard, it should meet the requirements specified in GB/T4897-2003.

● Plywood

The choice of plywood should meet the first-class requirements specified in GB/T9846.1～9846.8-2004.

●Formaldehyde emission

The formaldehyde emission of various glued materials selected should meet the requirements specified in GB18580-2001.

● Adhesive

The limit of harmful substances in the adhesive should meet the requirements specified in GB18583-2001.

● paint

The limit of harmful substances in paint shall meet the requirements specified in GB18581-2001.

● glass

Glass should be selected according to the functional requirements of the appropriate variety and color, safety glass should be used.

● Finishing material

Veneer materials can be selected from veneer, melamine impregnated paper veneer, PVC plastic veneer, etc., which should be selected according to design requirements and functional requirements.

When using veneer as the veneer material, the thickness should not be less than 0.15mm.

When selecting non-wood materials, environmental protection requirements should be met.

● Sealing material

The sealing material should be selected according to the functional requirements and the characteristics of the sealing material.

● Hardware, accessories, fasteners

Hardware, accessories and fasteners should meet functional requirements.

The door hardware and accessories are installed in the correct, complete and firm position, with sufficient strength, flexible opening and closing, and no noise.

allowable deviation

The allowable deviation of wooden doors should meet the following requirements.

● Allowable deviations and inspection methods for wooden doors

in millimeters

Item Allowable deviation Inspection method

Frame, fan thickness +1.0 -1.0 Check with steel ruler and micrometer

Box height and width +3.0 +1.5 Check with steel ruler

Fan height and width -1.5 -3.0 Check with steel ruler

The difference between the diagonal length of the frame and the fan is 3.0. Check with a steel ruler, measure the inner corner of the frame and the outer corner of the fan

The height difference between the frame, the fan section and the line junction is 1.0 Check with a steel ruler and a feeler gauge

Fan surface flatness 2.0 Check with 1 meter ruler and feeler gauge

Sash warp 3.0 On inspection platform, check with feeler gauge

Frame and side installation verticality 1.0 Check with 1 meter vertical inspection ruler

The height difference between frame and fan, fan and fan joint is 1.0 Check with steel ruler and feeler gauge

● seam limit

The seam limit for assembled wooden doors shall comply with the provisions in Table 5.

● Seam limit and inspection method for wooden doors

in millimeters

Item Seam limit value Inspection method

The gap between the door leaf and the upper frame 1.5～4.0 Check with a feeler gauge

Seam between door leaf and side frame 1.5～4.0

Seam between door leaf and ground External door 4.0～6.0

Inner door 6.0～8.0

Toilet 8.0～10.0

● Surface appearance requirements for decorative veneer

The surface appearance of the decorative veneer shall meet the requirements in Table 6.

● Surface appearance requirements for decorative veneer

Defect name Defect range Nominal range

box door leaf

Vertical and horizontal frame Door core board

Pocks Diameter less than 1mm (distance 300mm) Unlimited 2 pieces 5 pieces

Pockmarked surface Uniform particles, no scratching to the hand Unlimited

Scratch width ≤ 0.5㎜, depth without scratching PVC veneer length 100㎜ 3 pieces 1 piece 2 pieces

Indentation Concave depth ≤ 1.5mm, width less than 2mm, not concentrated 8 3 6

Floating stickers are not firmly pasted Not allowed

Folds Overlapping of finishes Not allowed

Lack of skin The area does not exceed 5㎡ 5 pieces 3 pieces Not allowed

Warped skin Protrusion not more than 2mm, unlimited 5 pieces Not allowed

Bright shadows/dark marks Area not exceeding 50m㎡ Unlimited 2 places 3 places

Seam from seam stitching gap not more than 1mm not more than 0.5mm not more than 1mm

Paint Appearance Requirements

Marks should be marked on obvious parts of the product, and the main contents include: specifications, production date or serial number.

● Packaging

Each product should be packaged in plastic film and packaged in a carton. There should be a packing list and a product inspection certificate in the package.

● Transportation

Prevent mechanical collision and sun and rain during transportation.

● storage

The product should be stored in a clean, dry, well ventilated warehouse with suitable humidity, and the storage should be flat to prevent deformation.