People with outdoor tubs usually install them close to the garage or house so they can keep the equipment in a heated area. One consideration in choosing a location for the tub or spa is ease of installation. Because spas are molded in one piece, they have some indoor installation limitations. Some spas are designed to go through standard doorways. Maximum spa diameter can’t exceed doorway height and width. Some spa shells are 61/2 feet across and approximately 28–29 or 34–35 inches deep. Measure carefully! It is impossible to get standard size spas up or down stairways. A two-person spa may go through the door, but it will be tight. If you can find a spa that fits into your house, be sure it’s still large enough to give you the leg room and depth you need. Unfortunately, many spas that fit through the doors and around the stairways are no bigger than a two-person bathtub. Remember! Depth is everything. Consider putting the spa outside or buying a Rubadub Tub®. Our Rubadub Tub® Hot Tubs easily go through doorways. There in an easy to assemble kit form and easy to move at any time in the future.