Door Details in Masonry

Masonry Construction

Detailer needs to understand – how a door is installed – space available (Masonry Opening)

Masonry Opening (MO) based on– size of masonry units– size of joints– door size

Masonry Openings need to be exact– dimensioning is from masonry to masonry

Modular System

4” modular system best for masonry construction Categories or groupings of doors as established by Masonry

Design Manual– Group 1

» Door sizes: 2’0, 2’4, 2’8, 3’0– Group 2

» Door sizes: 2’2, 2’6, 2’10, 3’2 Don’t mix groups Either group can be increased by multiples of 4”

Group 1 vs. Group 2 Doors for 6’8” door with 3/8” mortar joint

Group 1 (Scheme A) Group 2 Scheme A

Notes: Add 4” for either Group when using 8” block height

Group selection will effect foundation design

--2 3/16” head –1 3/16” head--2 3/16” jamb –1 3/16” jamb

--2 3/16” below floor line w/ 4” block height

–3 3/16” below floor line w/ 4” block height

Group 1 - Head Detail (Jamb Sim)

buck 1 1/2” nominal 1 3/16” net

shim space 1/4”

finished jamb 1” nominal 3/4” net

Total Head/Jamb =2 3/16”

wood spline

Group 2 - Head Detail (Jamb Sim)

•buck-- none used

•shim space--none

finished jamb 1 1/2” nominal

1 3/16” net

Total Head/Jamb =1 3/16”

Masonry Openings

Group 1 Masonry Width Opening Determination– Step 1--door size + 2* jamb width– Step 2--door size + 2 * 2 3/16– Step 3(answer)--door size + 4 3/8 = MO

Group 2 Masonry Width Opening Determination– Step 1--door size + 2 * jamb width– Step 2--door size + 2 * 1 3/16– Step 3(answer)--door size + 2 3/8 = MO

Jamb Anchorage for Group 1

•Bolts directly in grout •Nails at angle

Buck installed with or after block work

Buck must be installed with block work

Pictorial Jamb Anchorage by bolts

Jamb Anchorage for Group 2Metal anchors embedded in grout

No buck, frame must be installed with block work

Pictorial of Veneer Brick w/ Wood Frame

Code usually requires weight of veneer (brick) not be placed directly on wood frame

Lintel used to support brick– angle iron

Veneer Detail with Wood Frame

Metal Door Frame and Jamb Anchors

A variety of jamb anchors

Usually 14 or 16 gauge steel frames

Pictorial of Metal Door Jamb in Solid Masonry Wall

Jamb must be installed with block work

Also notice caulking to seal off air infiltration into structure

ASSIGNMENT Sheet A-8 Provide Door Type Elevations w/ dimensions Detail door jambs and header Use door schedule on page A-10 Repeat for widow types (must match elevations)

HINT: Search Class Architecture Folder

Drafting ExerciseMasonry Door Detail Profile drawing, use 1/4” diameter anchor bolts Align both views (In book the alignment is off) Both details, callout 2-#4 Rebar Location of dimension for door height is incorrect

(HEAD detail), should go to door frame instead of door trim (detail is as per group 2, scheme A)

Finished Head is 1 1/2 x 6 nominal size There should be no thin lines (JAMB detail) left side of

door section