diff --git a/views/reserve.erb b/views/reserve.erb
index 001f8ebc41a49817d93cc7205a98277fdecbb08c..a26f5ce4fe977e450809957704995b05f674446c 100644
--- a/views/reserve.erb
+++ b/views/reserve.erb
@@ -12,7 +12,12 @@ unless reservation.nil?
     end
     start_hour += 12 if start_hour == 0
     start_minute = reservation.start_time.in_time_zone.min
-end %>
+end 
+
+HALF_HOUR_HEIGHT = 28 # pixel height of half-hour sections in calendar. DO NOT CHANGE RESPONSIVELY
+SIX_AM_MINUTES = 360 # start time of calendar 
+EIGHT_PM_MINUTES = 1200 # end time of calendar
+%>
 
 <div id="pagetitle">
 	<h3><%= reservation.nil? ? 'Reserve Time for ' : 'Edit Reservation for ' %><%= resource.name %></h3>
@@ -26,7 +31,7 @@ end %>
             <label class="day-header"><%= day.strftime("%^a %-m/%d") %></label>
             <div class="time-labels">
                 <div class="time-chart">
-                    <% (12..47).each do |j| %>
+                    <% (12..39).each do |j| %>
                         <div class="calendar-half-hour">
                             <label><%= "#{(j / 2) % 12 + (j==24?12:0)} #{j>=24?'PM':'AM'}" if j % 2 == 0 %></label>
                         </div>
@@ -41,8 +46,8 @@ end %>
                         if end_slot < 0
                             next
                         end
-                        top = (((res.start_time.in_time_zone - day.midnight) / 60 - 360) / 30) * 28
-                        height = res.length * 28 / 30
+                        top = (((res.start_time.in_time_zone - day.midnight) / 60 - 360) / 30) * HALF_HOUR_HEIGHT
+                        height = res.length * HALF_HOUR_HEIGHT / 30
                         %>
                         <div class="event-container" style="top: <%= top %>px;">
                             <div class="reservation <%= 'editing' if !reservation.nil? && reservation.id == res.id %>" 
@@ -66,7 +71,7 @@ end %>
                         ends = space_hour.hours.map{|record| record[:end]}
                         %> <%
                         closeds = []
-                        (360..1439).each do |j|
+                        (360..1199).each do |j|
                             if starts.include?(j)
                                 closed_end = j
                                 closeds << [closed_start, closed_end]
@@ -77,24 +82,28 @@ end %>
                                 closed_start = j
                             end
                         end 
-                        closed_end = 1440
+                        closed_end = 1200
                         closeds << [closed_start, closed_end]
 
                         closeds.each do |closed|
                             start_time = closed[0] %>
                             <% end_time = closed[1] %>
-                            <% 
-                            if [((end_time - 360) / 30).floor, 35].min  < 0
+                            <%
+                            # if the end time is before 6 am, skip.
+                            if ((end_time - SIX_AM_MINUTES) / 30).floor < 0
                                 next
                             end
-                            top = ((start_time - 360) / 30) * 20
-                            height = (end_time - start_time) * 20 / 30
+                            # calculate top based off of 6 am start
+                            top = ((start_time - SIX_AM_MINUTES) / 30) * HALF_HOUR_HEIGHT
+                            height = (end_time - start_time) * HALF_HOUR_HEIGHT / 30
+                            # normalize top to 0, reduce height to accomodate
                             if top < 0
                                 height += top
                                 top = 0
-                            end 
-                            if top + height > 720
-                                height = 720 - top
+                            end
+                            # normalize the bottom to the bottom of the calendar at 8pm. 
+                            if top + height > (EIGHT_PM_MINUTES / 30) * HALF_HOUR_HEIGHT
+                                height = (EIGHT_PM_MINUTES / 30) * HALF_HOUR_HEIGHT - top
                             end
                             %>
                             <div class="status closed" title="Closed" style="top: <%= top %>px; height: <%= height %>px;">
@@ -106,18 +115,18 @@ end %>
                             <% if record[:status] != 'open' && record[:status] != 'closed' %>
                                 <% start_time = record[:start] %>
                                 <% end_time = record[:end] %>
-                                <% if [((end_time - 360) / 30).floor, 35].min  < 0
+                                <% if [((end_time - SIX_AM_MINUTES) / 30).floor, 35].min  < 0
                                     next
                                 end
-                                top = ((start_time - 360) / 30) * 20
-                                height = (end_time - start_time) * 20 / 30
+                                top = ((start_time - SIX_AM_MINUTES) / 30) * HALF_HOUR_HEIGHT
+                                height = (end_time - start_time) * HALF_HOUR_HEIGHT / 30
                                 if top < 0
                                     height += top
                                     top = 0
                                 end 
-                                if top + height > 720
-                                    height = 720 - top
-                                end
+                                if top + height > (EIGHT_PM_MINUTES / 30) * HALF_HOUR_HEIGHT
+                                height = (EIGHT_PM_MINUTES / 30) * HALF_HOUR_HEIGHT - top
+                            end
                                 %>
                                 <div title="<%= record[:status].split('_').join(' ').capitalize_all %>" class="status <%= record[:status].downcase.split('_').join('-') %>" style="top: <%= top %>px; height: <%= height %>px;">
                                     &nbsp;
@@ -126,7 +135,7 @@ end %>
                         <% end %>
                     <% end %>
                     <div>
-                    <% (12..47).each do |j| %>
+                    <% (12..39).each do |j| %>
                         <div class="calendar-half-hour">
                             &nbsp;
                         </div>