Interior Systems introduction to the construction of door and window openings

The purpose of this standard is to provide the candidate with practical knowledge and skills required to work on the construction of door and window openings.


Interior Systems introduction to the construction of door and window openings 


Minimum 1/2 day of 3 learning hours  


The purpose of this standard is to provide the candidate with practical knowledge and skills required to work on the construction of door and window openings 


  • instructions, design and technical literature 
  • safety requirements 
  • team working 
  • safe and clean working practices 
  • interpreting the design 
  • openings for doors 
  • openings for windows  
  • British Standards 
  • NHBC tolerances 
  • requisite structural strength 
  • detailing 
  • different drywall systems. 

Occupational relevance 

Training delivered against this standard would be relevant to the following occupational group(s): 

  • operative and craft 
  • supervision. 


There are no candidate pre-requisites as part of this standard. However a basic knowledge of interior systems terminology and techniques would be beneficial. 

Instruction/ supervision 

As a minimum, course instructors must be able to demonstrate that, in relation to this standard, they have: 

  • a train the trainer or instructional techniques course certificate  
  • successfully completed training to this standard  
  • at least 2 years relevant industrial experience 
  • a verifiable CV. 


Delivery may be in an on or off the job environment. 

All materials and equipment must be of a suitable quality and quantity for candidates to achieve learning outcomes and must comply with relevant legislation. 

The class size and candidate/instructor ratio must allow training to be delivered in a safe manner and enable candidates to achieve the learning outcomes.  

The following delivery methods may/may not be used in the delivery of this standard: 

  • practical training in an on or off the job environment. 

This standard is considered to contain 51% or more practical training. 

This standard is considered to be set at an entry level. 


For the successful completion of training, candidates must complete an end of course practical assessment or knowledge test that measures the learning outcomes and has a pass or fail criteria.   

Quality assurance 


Quality assurance against this standard will require initial approval of the training organisation and their content mapped to the standard.  

CITB will also conduct an approval intervention, either desk-based or centre visit, to ensure the training organisation can meet the requirements of the training standard.  

Approved training organisations (ATOs) will be required to present information on records of training and assessment upon request to CITB for desk based analysis. They will also be visited annually by the CITB quality assurance team. 


No Renewal/Refreshment Requirements - There are no mandatory renewal or recommended refreshment requirements for this standard. 

Approval date 


Review cycle 

Either on request or in 3 years from approval date. 

Learning outcomes

The candidate will be able to: 

Additional guidance to support learning outcome  

Briefly explain instructions and technical literature, manufacturer’s instructions and safety requirements. 


Work as part of a team under instruction. 


Demonstrate safe and clean working practices within the work place. 


Interpret the design specified. 


Demonstrate the correct construction of openings for doors and windows within British Standards and NHBC tolerances and manufacturers’ specifications. 


Demonstrate knowledge of requisite structural strength. 


Construct openings for doors and windows to British standards and NHBC tolerances. 


Briefly explain how to interpret the design specified. 


Construct door and window details to British Standards, NHBC and manufacturers’ specifications according to the system being used. 


Describe how to construct openings with requisite structural strength for the door or window to be installed. 


Briefly explain British Standards and NHBC tolerances  


Identify the correct method of detailing for a given opening requirement. 


Describe the different types of detail available for openings in different drywall systems. 


Additional information about this standard

Health and Safety Executive (HSE) guidance: 

Managing construction health risks 

Safety topics 

Health and Safety Executive (HSE) publication: 

Health and safety in construction, HSG150, 2006.