Applications Maximum m.c. at time of installation for non air-conditioned application  Maximum m.c. at time of installation for air-conditioned application
 

Structural Components

* Columns, beams, bearer, studs, joists, ties and struts

30%
(Thickness >100 mm)

25%
(Thickness <100 mm)

Not applicable

Not applicable

 

Roofing

* Rafters, ties, struts, purlins and bracing

* Battens

30%

25%

Not applicable

Not applicable

 
 

Staircase

* Stringers, treads, trimmer beam and handrail

* alustrades

19% 

19%

 

12% 

12%

 
 

looring

* Floor boarding and parquetry

* Skirtings

19% 

19%

12% 

12%

 
 

Walling

* Wall, partition framing

* external wall boardings

* Internal wall boardings, slates screens

* Fascia boards

19%

19%

19%

19%

 

12%

Not applicable

12%

Not applicable

 
 

Ceiling Frames

* Cover battens to joints of ceiling sheets

* Ceiling strips and soffit battens

25%

19%

 

Not applicable

12%

 
 

Door & WIndow Frames

* Door, window and vent frames including their stops and grounds

* Door leaves, window and vent sashes

 

19%

19%

12%

12%

 

Furniture

* Built-in fittings, furniture generally

* Workshop furniture

* Science laboratory tops

19%

19%

19%

12%

12%

12%

Beading fillets and edgings generally 19% 12%
 Applications Strength Group 
 

Structural Components

* Columns, beams, bearer, studs, joists, ties and struts

* Form work

     * SG 1, SG 2, SG 3 AND SG 4

     * SG 1, SG 2, SG 3, SG 4 AND SG 5

 
 

Roofing

* Rafters, ties, struts, purlins and bracing

* Battens

      * SG 1, SG 2, SG 3 AND SG 4

      * SG 1, SG 2, SG 3, SG 4 AND SG 5

 
 

Staircase

* Stringers, treads, trimmer beam and handrail

* Balustrades

      * SG 1, SG 2, SG 3 AND SG 4

      * SG 1, SG 2, SG 3, SG 4, SG 5 AND SG 6

 
 

Flooring

* Floor boarding and parquetry

* Skirtings

      * SG 1, SG 2, SG 3, SG 4 AND SG 5

      * SG 1, SG 2, SG 3, SG 4, SG 5 AND SG 6

 
 

Walling

* Wall, partition framing and external wall boardings

* Internal wall boardings, slates screens

* Fascia boards

     * SG 1, SG 2, SG 3, SG 4, SG 5 AND SG 6

     * SG 1, SG 2, SG 3, SG 4, SG 5, SG 6 AND SG 7

     * SG 1, SG 2, SG 3 AND SG 4

 
 

Ceiling Frames

* Cover battens to joints of ceiling sheets

* Ceiling strips and soffit battens

      * SG 1, SG 2, SG 3 AND SG 4

      * SG 1, SG 2, SG 3, SG 4, SG 5 AND SG 6

 

Door & WIndow Frames

* Door, window and vent frames including their stops and grounds

* Door leaves, window and vent sashes

      * SG 1, SG 2, SG 3 AND SG 4

      * SG 1, SG 2, SG 3, SG 4 , SG 5 AND SG 6

Furniture

* Built-in fittings, furniture generally and workshop furniture

* Science laboratory tops

     * SG 1, SG 2, SG 3, SG 4, SG 5 AND SG 6

     * SG 1, SG 2, SG 3 AND SG 4

Beading fillets and edgings generally

     * SG 1, SG 2, SG 3, SG 4, SG 5 AND SG 6

 SG 1 SG 2  SG 3  SG 4  SG 5  SG 6  SG 7 
 (A) NATURALLY DURABLE      
 Balau Belian  Bekak  Giam  Tembusu     
 Bitis Mata Ulat  Delek  Malabera       
Chengal  Kekatong  Keranji  Merbau       
Penaga      Resak       
(B) REQUIRING TREATMENT       
  Dedalu  Balau, red  Berangan  Alan Bunga  Bayur  Ara 
  Kempas Kelat Dedali Babai Damar Minyak Batai
  Merbatu Kembang Semangkok Derum Balek Angin openg Durian Geronggang
   Mertas Kulim  Kapur  Bintangor  Jelutong  Laran 
    Pauh Kijang Kasai Brazil nut Jongkong Pelajau
    Penyau Keruntum Gerutu Kasah Pulai
    Perah Mempening Kedondong Machang Sesendok
    Petaling Meransi Keledang Medang Terentang
    Ranggu Meranti Bakau Keruing Melantai/Kawang  
    Ru Merawan Ketapang Meranti, Light Red  
    Surian Batu Merpauh Kungkur Meranti, Yellow  
    Tualang Nyalin Rubberwood Mersawa  
      Perupok Melunak Sengkurat  
      Punah Mempisang Terap  
      Rengas Mengkulang    
      Simpoh Meranti, Dark Red    
        Meranti, White    
        Nyatoh    
        Penarahan    
        Petai    
        Ramin    
        Sengkuang    
        Sepetir    
        Tetebu    

NOTES:

1. For naturally durable timbers, sapwood should be excluded. If sapwood is included, preservative treatment is necessary. (Source-MS 360:1986)

2. For timber requiring treatment, they should be amenable to preservative treatment.

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