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MASONS SUPPLY COMPANY
Oregon (800) 537-3407 ♦ Washington (800) 537-6216
Clackamas | Eugene | West Eugene | Hillsboro | Medford | Portland | Salem | Wilsonville | Ridgefield | Seattle | Tacoma | Woodinville
M A S C O . N E T
SLAB/HORIZONTAL
Adjustable Chairs
Standard screed chairs and pipe holders are
available sizes ranging for a 3-3/4" slab to 13"
slab. These chairs have the "butterfly" leg design
for added strength, and yet this chair can be
placed over and beside rebars for easiest screed
pipe alignment. The table below shows the
range of adjustment (minimum and maximum
slabs) for each size chair and pipe holder. Place
screed chairs at 4'-0" maximum under screed
pipe. On special order, chairs can be made with
galvanized wire, electro-galvanized, or provided
with stainless dowels between wire and form face.
Stock pipe holders are made for 1" ID pipe.
WARNING:
Do not use to support the weight of finishing (screed) machines.
NOTE:
Height based on 1" ID pipe.
Heavy Duty Chairs
Heavy duty screed chairs and pipe holders
are available sizes ranging for a 4-3/8" slab
to 16-7/8" slab. The table shows the range of
adjustment (minimum and maximum slabs)
for each size chair and pipe holder. Place
screed chairs at 2'-0" maximum under screed
pipe. On special order, chairs can be made
with galvanized wire, electro-galvanized, or
provided with stainless dowels between wire
and form face. Stock pipe holders are made
for 1-1/4 and 1-1/2" ID pipe. SWL is 800 lbs.
NOTE: To obtain actual slab limitations, you
must add pipe O.D. to above dimensions.
Diameter
Size
Height
Size
Height
Min
Max
1/2"
No. 1
2-1/2"
No. 0
1-1/2"
3-3/4"
4-1/2"
1/2"
No. 2
3-1/2"
No. 2
4"
5-1/4"
7-1/2"
1/2"
No. 3
5"
No. 4
8"
9-1/4"
13"
Slab Thick
Pipe Holder
Chair Base
Screed Support Selection Chart
Heavy Duty Screed Support Selection Chart
Slab Thick
G-14 Pipe Holder
G-16 Chair Base
Diameter
Size
Height
Size
Height
Min
Max
1"
No. 7
3-1/2"
No. 4
4-1/4"
4-3/8"
6-7/8"
1"
No. 8
5-1/2"
No. 5
6-3/4"
6-7/8"
10-5/8"
1"
No. 9
8-1/2"
No. 6
9-3/4"
9-7/8"
16-7/8"
Typical
Application
Screed Board
G-1 Pipe Holder
G-2 Screed
Chair Base
Height
SCREEDS