1 All vertical bamboo at base should be of solid core and have minimum diameter of 3".
2. Bamboo scaffold should be always done in double staging.
3. it should be adequately braced with a stable structure at max 6 meter height interval. (If its a building, around which scaffolding is to be done, then horizontal bamboo should go inside the structure are through windows and it should be tied to MS CT Prop by fixing it firmly on floor to ceiling )
4. do check for all horizontal braces for properly tie with vertical members.
5. do not use split, broken bamboo at any position
This is what basic things to be adopted for bamboo staging work.
No one can predict the actual or approx strength of bamboo as its not a engineered product.