- A structural member placed on, and usually fastened to, the top of a pile or a group of piles and used to transmit loads into the pile or group of piles and, in the case of a group, to connect them into a bent. Also known as a rider cap or girder.
- A masonry, timber, or concrete footing resting on a group of piles.
- A metal cap or helmet temporarily fitted over the head of a precast pile to protect it during driving. Some form of shock-absorbing material is often incorporated.