There are (6) Type of umbrellas
Type T = Telescopic center post umbrella
Round - 9' 10" to 21' 4" diameter
Square - 6' 7" x 6' 7" to 16' 5" x 16'
Rectangular - 8' 2" x 6' 7" to 21' 4" x 13'
Mast Diameter - approx. 3.15"
Canopy Thickness - approx. 1/8" or 5/32"
Type TL = Telescopic center post with slider on the mast
Round - 21' 4" to 26' 3" diameter
Square - 18' 1" x 18' 1" to 19' 8" x 19'
Rectangular - 18' 1" x 14' 9" to 23' 0" x 16'
Mast Diameter - 4.17"
Canopy Thickness - approx. 1/8"
Type TLx = Telescopic center post with slider on reinforced mast and/or arms
Round - 26' 3" to 32' 10" diameter
Square - 21' 4" x 21' 4" to 24' 7" x 24'
Rectangular - 23' x 19' 8" to 29' 6" x 16'
Mast Diameter - 4.33"
Canopy Thickness - approx. 2/10"
Type TS & TSx = Telescopic center post Strong Wind resistance up to 60 mph
Round - 9' 10" to 19' 8" diameter
Square - 9' 10" x 9' 10" to 16' 5" x 16'
Rectangular - 13' 1" x 9' 10" to 19' 8" x 13'
Mast Diameter - approx. 3.15" to 4.33"
Canopy Thickness - approx. 5/ 32" to 2/10"
Type Tx = Telescopic center post Reinforced Wind resistance up to 40 mph
Round - 23' to 26' 3" diameter
Square - 19' 8" x 19' 8"
Rectangular - 19' 8" x 16' 5" to 24' 7" x 13' 1"
Mast Diameter - approx. 4.33"
Canopy Thickness - approx. 2/10"