Tickets will be available to purchase on the gate at Saturday's pre-season match in aid of the Bobby Moore Fund for Cancer Research UK against Pacos de Ferreira.
The Portuguese UEFA Champions League qualifiers are in town to give the Hammers their final pre-season test ahead of the big kick-off, and tickets are available for just £20 or £10 for Under-16s.
Cash turnstiles will be in operation in all four stands at the following locations:
Sir Trevor Brooking Stand Lower (home)
Turnstiles 0, 1, 2
Sir Trevor Brooking Stand Lower (away)
Alpari Stand Lower
Turnstiles 9, 10, 11, 38, 39
Alpari Stand Upper
Turnstiles 16, 17, 29
Bobby Moore Stand Upper
Turnstiles 46, 49