Stitch Pink Block 12 - House on the Hill 
Block tip: [Moda's blog] I love house blocks, and the most important thing I've learned over the years is that this is one of those blocks where seam allowance matters.  The window section of pieces E-I-E-J has three seams, and one or two thread-widths difference from a scant 1/4" can add up quickly, making the section too short-long for the D strip.  Then one more seam and it's joined to H.  Pressing any-all of these seams open can also affect the size of the pieced units. 

The first thing to do is piece the two window sections - the E-I-E-J sections.  Measure both pieced units.  

If the section measures more than 7-1/2" long, trim the J window on the bottom edge so that the piece measures 7-1/2", the same size as the D strip. 

If the strip measures less than 7-1/2", do not trim anything.  If it's a tiny amount - less than 1/8" - I would let it go.  Join the D strip so that it matches at the top and the shortage is at the bottom, under the J window.  But if it's more than that, the seams will need to be un-stitched, and re-stitched.  Yes.  Hunt down your seam ripper.  (If it's like mine, it's at the bottom of a drawer, gathering dust.)

Do the same thing for the window-door section - the E-I-F-K pieces.  If the pieced section is too big, trim the bottom of the door.  If it's more than 1/8" too short, re-do the seams starting with the F and K seam.  

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