Open vs enclosed balustrade

Balustrade

• May be square or moulded . 
• Balusters should be spaced that a 100mm sphere cannot pass between them . 

• To prevent children under 5 year of age becoming stuck between them 

• Method to install balustes

1. Tenoned or housed in the underside off the handrail 
2. Tenoned into the top of closed strings . 
3. Set into housings in the treads of flights with cut string .